Chess South Africa Ratings Database

PLAYER PAGE

Personal

Johnson, W (Wian)

Chess SA id

1150191247

FIDE id

Date of birth

2015-12-02 (U12)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-06-07

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1068.8

Item	Main	Standard	Rapid	Blitz
Rating	1222.6	1183.1	1285.1	1200
Raw rating	1221.9	1183.1	1285.1	1200
Weighted rating	1222.6	1182.9	1273.7	1200
Weighted performance	985.3	0	0	0
Floor	731	700	785.1	700
K-factor	36	36	36	36
Min/Max rating change allowed	160.7	169.9	146.9	165.8
Highest rating	1266 2024-02-01	1200 2018-10-01	1409.7 2024-02-01	1200 2018-10-01
Highest raw rating	1231 2024-06-01	1200 2024-02-01	1285.1 2025-07-01	1200 2024-02-01
Highest weighted rating	1231 2025-03-01	1200 2018-10-01	1269.4 2025-08-01	1200 2018-10-01
Highest weighted performance	1266 2024-02-01	1200 2019-12-01	1409.7 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0.1	0	0	0
New rating	1222.7	1183.1	1285.1	1200
Analysis
Rating	1222.6	1183.1	1285.1	1200
Raw rating	1221.9	1183.1	1285.1	1200
Weighted rating	1222.6	1182.9	1273.7
Weighted performance	985.3	0	0
K-factor	36	36	36	36
Floor	731	700	785.1	700
Max/Min rating change allowed	160.7	169.9	146.9	165.8
Games	0	0	0	0
Score	0	0	0	0
Expected score	0	0	0	0
Score-Expected	0	0	0	0
Temp raw +/-	0	0	0	0
Final raw +/-	0	0	0	0
New raw rating	1221.9	1183.1	1285.1	1200
New weighted rating	1222.7	1182.7	1275.5	1200
New weighted performance	985	0	0	0
Temp new rating	1222.7	1183.1	1285.1	1200
Temp new rating +/-	0.1	0	0	0
Final new rating +/-	0.1	0	0	0
New rating	1222.7	1183.1	1285.1	1200
New K-factor	36	36	36	36
New floor	731	700	785.1	700

Item	Main	Standard	Rapid
	0	0	0
	13	9	4
	21	10	11
	4	0	4
	0	0	0
	0	0	0
History	38	19	19

Games since
	Main 38	Standard 19		Rapid 19		Blitz 0
Gender	Male
Age group	U12
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1


	Games	Score	%	Dp	AvgOpp	Performance
Main	0	0	0	0	0	0
Standard	0	0	0	0	0	0
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

	Games	Score	%	Dp	AvgOpp	Performance
Main	13	4.5	34.62	-130.8	1246	1115.2
Standard	9	2	22.22	-236.1	1261	1024.9
Rapid	4	2.5	62.5	106.2	1212.2	1318.4
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	38	18	47.37	-22.4	1232.1	1209.8
Standard	19	6	31.58	-156.6	1237.8	1081.3
Rapid	19	12	63.16	111.8	1226.4	1338.3
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1221.9	1183.1	1285.1	1200
2025-09-01	1221.9	1183.1	1285.1	1200
2025-08-01	1221.9	1183.1	1285.1	1200
2025-07-01	1219.5	1180	1285.1	1200
2025-06-01	1221.5	1184.5	1272.3	1200
2025-05-01	1221	1184.5	1272.3	1200
2025-04-01	1219.3	1183.7	1272.3	1200
2025-03-01	1223.2	1185.4	1272.3	1200
2025-02-01	1223.2	1185.3	1272.3	1200
2025-01-01	1223.2	1179.1	1272.3	1200
2024-12-01	1223.2	1179.1	1272.3	1200
2024-11-01	1223.2	1179.1	1272.3	1200
2024-10-01	1231	1180.9	1272.3	1200
2024-09-01	1231	1180.9	1272.3	1200
2024-08-01	1231	1180.9	1272.3	1200
2024-07-01	1231	1180.9	1272.3	1200
2024-06-01	1231	1180.9	1272.3	1200
2024-08-01	1219.7	1180.9	1268	1200
2024-04-01	1219.7	1180.9	1268	1200
2024-03-01	1219.7	1180.9	1268	1200
2024-02-01	1202.8	1200	1207.9	1200
2024-01-01	1202.8	1200	1207.9	1200
2023-12-01	1202.8	1200	1207.9	1200
2023-11-01	1202.8	1200	1207.9	1200

Comming soon.

Tournaments

History

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Helderberg Chess Club Open 2025 (U11)	2025-06-07	2025-06-07	Standard	Cape Town (WCT)	5	4	0	Yes	Analysis
2	Cape Town Chess Junior League 2025 (U8+U10 Development)	2025-05-23	2025-05-31	Rapid	Cape Town (WCT)	7	4	2.5	Yes	Analysis
3	Mary-Anne Bartels Closed Chess Tournament 2025 (U11)	2025-02-22	2025-02-22	Standard	Cape Town (WCT)	5	5	2	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Helderberg Chess Club Open 2025 (U11)	2025-06-07	2025-06-07	Standard	Cape Town (WCT)	5	4	0	Yes	Analysis
2	Cape Town Chess Junior League 2025 (U8+U10 Development)	2025-05-23	2025-05-31	Rapid	Cape Town (WCT)	7	4	2.5	Yes	Analysis
3	Mary-Anne Bartels Closed Chess Tournament 2025 (U11)	2025-02-22	2025-02-22	Standard	Cape Town (WCT)	5	5	2	Yes	Analysis
4	Grant East Annual Primary School Invitational Chess Tournament 2024 (U9)	2024-10-05	2024-10-05	Standard	Cape Town (WCT)	5	5	2	Yes	Analysis
5	Rhenish PS Tournament 2024 (U10)	2024-05-11	2024-05-11	Rapid	Cape Winelands (WCW)	6	6	3.5	Yes	Analysis
6	Mary-Anne Bartels Closed Chess Tournament 2024 (U7+U9 Mixed)	2024-02-24	2024-02-24	Rapid	Cape Town (WCT)	5	5	4	Yes	Analysis
7	CT District East Schools Chess Individuals Trails 2024 (U7+U9 Boys)	2024-02-03	2024-02-03	Standard	Cape Town (WCT)	5	5	2	Yes	Analysis
8	Grant East Primary School Invitational Chess Tournament 2023 (U9 Mixed)	2023-11-04	2023-11-04	Rapid	Cape Town (WCT)	6	4	2	Yes	Analysis

#	Games	Start				End
1	6	Tournament Mary-Anne Bartels Closed Chess Tournament 2025				Tournament Cape Town Chess Junior League 2025
		date 2025-02-22	rnd 4	type Standard	result 1	date 2025-05-31	rnd 7	type Rapid	result 0.5
		Opponent Botha, K (Kayleigh)				Opponent Biden, N (Nicholas)
2	4	Tournament Mary-Anne Bartels Closed Chess Tournament 2024				Tournament Mary-Anne Bartels Closed Chess Tournament 2024
		date 2024-02-24	rnd 1	type Rapid	result 1	date 2024-02-24	rnd 4	type Rapid	result 1
		Opponent Malan, B (Benjamin)				Opponent Young, L (Leo)
3	2	Tournament Rhenish PS Tournament 2024				Tournament Grant East Annual Primary School Invitational Chess Tournament 2024
		date 2024-05-11	rnd 6	type Rapid	result 1	date 2024-10-05	rnd 1	type Standard	result 1
		Opponent Coelho, M (Mason)				Opponent Mpinda, M (Musa)

#	Games	Start				End
1	2	Tournament Mary-Anne Bartels Closed Chess Tournament 2025				Tournament Mary-Anne Bartels Closed Chess Tournament 2025
		date 2025-02-22	rnd 4	type Standard	result 1	date 2025-02-22	rnd 5	type Standard	result 1
		Opponent Botha, K (Kayleigh)				Opponent Louw, Z (Ziah)
2	1	Tournament Grant East Annual Primary School Invitational Chess Tournament 2024				Tournament Grant East Annual Primary School Invitational Chess Tournament 2024
		date 2024-10-05	rnd 4	type Standard	result 1	date 2024-10-05	rnd 4	type Standard	result 1
		Opponent Louw, Z (Ziah)				Opponent Louw, Z (Ziah)
3	1	Tournament Grant East Annual Primary School Invitational Chess Tournament 2024				Tournament Grant East Annual Primary School Invitational Chess Tournament 2024
		date 2024-10-05	rnd 1	type Standard	result 1	date 2024-10-05	rnd 1	type Standard	result 1
		Opponent Mpinda, M (Musa)				Opponent Mpinda, M (Musa)

#	Games	Start				End
1	5	Tournament Rhenish PS Tournament 2024				Tournament Cape Town Chess Junior League 2025
		date 2024-05-11	rnd 6	type Rapid	result 1	date 2025-05-31	rnd 7	type Rapid	result 0.5
		Opponent Coelho, M (Mason)				Opponent Biden, N (Nicholas)
2	5	Tournament Grant East Primary School Invitational Chess Tournament 2023				Tournament Mary-Anne Bartels Closed Chess Tournament 2024
		date 2023-11-04	rnd 6	type Rapid	result 1	date 2024-02-24	rnd 4	type Rapid	result 1
		Opponent Novokoza, A (Amila)				Opponent Young, L (Leo)
3	2	Tournament Rhenish PS Tournament 2024				Tournament Rhenish PS Tournament 2024
		date 2024-05-11	rnd 3	type Rapid	result 1	date 2024-05-11	rnd 4	type Rapid	result 1
		Opponent Breytenbach, D (Daniel)				Opponent Van Der Bergh, R (Ronald)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament Mary-Anne Bartels Closed Chess Tournament 2024				Tournament Mary-Anne Bartels Closed Chess Tournament 2024
		date 2024-02-24	rnd 1	type Rapid	result 1	date 2024-02-24	rnd 4	type Rapid	result 1
		Opponent Malan, B (Benjamin)				Opponent Young, L (Leo)
2	2	Tournament Mary-Anne Bartels Closed Chess Tournament 2025				Tournament Mary-Anne Bartels Closed Chess Tournament 2025
		date 2025-02-22	rnd 4	type Standard	result 1	date 2025-02-22	rnd 5	type Standard	result 1
		Opponent Botha, K (Kayleigh)				Opponent Louw, Z (Ziah)
3	2	Tournament Rhenish PS Tournament 2024				Tournament Grant East Annual Primary School Invitational Chess Tournament 2024
		date 2024-05-11	rnd 6	type Rapid	result 1	date 2024-10-05	rnd 1	type Standard	result 1
		Opponent Coelho, M (Mason)				Opponent Mpinda, M (Musa)

#	Games	Start				End
1	2	Tournament Mary-Anne Bartels Closed Chess Tournament 2025				Tournament Mary-Anne Bartels Closed Chess Tournament 2025
		date 2025-02-22	rnd 4	type Standard	result 1	date 2025-02-22	rnd 5	type Standard	result 1
		Opponent Botha, K (Kayleigh)				Opponent Louw, Z (Ziah)
2	1	Tournament Grant East Annual Primary School Invitational Chess Tournament 2024				Tournament Grant East Annual Primary School Invitational Chess Tournament 2024
		date 2024-10-05	rnd 4	type Standard	result 1	date 2024-10-05	rnd 4	type Standard	result 1
		Opponent Louw, Z (Ziah)				Opponent Louw, Z (Ziah)
3	1	Tournament Grant East Annual Primary School Invitational Chess Tournament 2024				Tournament Grant East Annual Primary School Invitational Chess Tournament 2024
		date 2024-10-05	rnd 1	type Standard	result 1	date 2024-10-05	rnd 1	type Standard	result 1
		Opponent Mpinda, M (Musa)				Opponent Mpinda, M (Musa)

#	Games	Start				End
1	5	Tournament Grant East Primary School Invitational Chess Tournament 2023				Tournament Mary-Anne Bartels Closed Chess Tournament 2024
		date 2023-11-04	rnd 6	type Rapid	result 1	date 2024-02-24	rnd 4	type Rapid	result 1
		Opponent Novokoza, A (Amila)				Opponent Young, L (Leo)
2	2	Tournament Rhenish PS Tournament 2024				Tournament Rhenish PS Tournament 2024
		date 2024-05-11	rnd 3	type Rapid	result 1	date 2024-05-11	rnd 4	type Rapid	result 1
		Opponent Breytenbach, D (Daniel)				Opponent Van Der Bergh, R (Ronald)
3	1	Tournament Cape Town Chess Junior League 2025				Tournament Cape Town Chess Junior League 2025
		date 2025-05-23	rnd 4	type Rapid	result 1	date 2025-05-23	rnd 4	type Rapid	result 1
		Opponent Booi, L (Lingomso)				Opponent Booi, L (Lingomso)

No games found.

#	Games	Start				End

Top 10 opponents most often played

#	Opponent	Main			Standard			Rapid			Blitz
		Gms	Score	Dp	Gms	Score	Dp	Gms	Score	Dp	Gms	Score	Dp
		Gms	Aor	Prat	Gms	Aor	Prat	Gms	Aor	Prat	Gms	Aor	Prat
1	Louw ,Z (Ziah)	2	2	425	2	2	425	0	0	0	0	0	0
1	Louw ,Z (Ziah)	2	1194	1619	2	1192.8	1619	0	0	0	0	0	0
2	Griesel ,J (Jason)	2	0	-425	1	0	-425	1	0	-425	0	0	0
2	Griesel ,J (Jason)	2	1200	775	1	1200	775	1	1200	775	0	0	0
3	Marais ,A (Alexander)	2	0	-425	1	0	-425	1	0	-425	0	0	0
3	Marais ,A (Alexander)	2	1428.9	1003.9	1	1489.7	1003.9	1	1360.4	1003.9	0	0	0
4	Van Der Spuy ,D (Daniel)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Van Der Spuy ,D (Daniel)	1	1267	842	1	1256.1	842	0	0	0	0	0	0
5	Onyire ,W (Winner)	1	1	425	1	1	425	0	0	0	0	0	0
5	Onyire ,W (Winner)	1	1168.3	1593.3	1	1200	1593.3	0	0	0	0	0	0
6	Machapa ,K (Kudzie Asher)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Machapa ,K (Kudzie Asher)	1	1200	775	1	1200	775	0	0	0	0	0	0
7	Kaiser ,H (Heinrich)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Kaiser ,H (Heinrich)	1	1199.8	774.8	1	1199.8	774.8	0	0	0	0	0	0
8	Pfukwa ,R (Rujeko)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Pfukwa ,R (Rujeko)	1	1413.7	988.7	1	1383.3	988.7	0	0	0	0	0	0
9	Myendeni ,A (Aphakama)	1	1	425	1	1	425	0	0	0	0	0	0
9	Myendeni ,A (Aphakama)	1	1080.5	1505.5	1	1140.4	1505.5	0	0	0	0	0	0
10	Botha ,K (Kayleigh)	1	1	425	1	1	425	0	0	0	0	0	0
10	Botha ,K (Kayleigh)	1	1200	1625	1	1200	1625	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Johnson, W (Wian)

Ratings

Game statistics

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms